I have been searching for a way to fix this error. In the upgrade file it says,
I don't understand how to verify there is a weight and length class for each language. In the admin side, on the first tab I can see swedish and english. But on the tab where there is length and weight, it only shows 1 language. And there is a value in each of them.ERROR: Items won't add to cart. Animation shows but cart remains empty.
SOLUTION: This is due to the products not having a legitimate weight class or length class. The upgrade can cause this, or it was missing for some languages. Verify that there is a weight class and length class for each language you have on your site. Also be sure that the product have actual product ids set. Edit and resave them and see if the add to cart works correctly.
Sorry if I am really really dumb but I just don't get it. I also tried to search on the forum with the same header as for this post and didn't get any searches.
Can someone please help on this?
Thanks!
Vimal.